pseudo/overlay filesystem

Haden

Senior member
Nov 21, 2001
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I'm searching for a pseudo filesystem to use instead of raid/lvm on a bunch of disks.
The problem is, that one is either waisting some space (for ex. raid5) or is reducing fault tolerance (loose one disk in JBOD setup, loose all data).
In situations where contents aren't critical, elegant solution seems to be overlay filesystem:
any number of disks (or partitions, each one already has fs (xfs, ext2 etc.)) would be "gathered" in one virtual, so that directory structure is identical on all of them, but files are distributed.

Anyone heard of such thing implemented (it seems rather trivial to code) or has comments?
 

Haden

Senior member
Nov 21, 2001
578
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Thanks.

n0c, I'm reading ccd manuals and it seems to interleave blocks rather than files, can any disk be removed from ccd array loosing only some files?
 

n0cmonkey

Elite Member
Jun 10, 2001
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Originally posted by: Haden
Thanks.

n0c, I'm reading ccd manuals and it seems to interleave blocks rather than files, can any disk be removed from ccd array loosing only some files?

Doesn't look like it. Bad suggestion on my part, I should read the manpages fully next time. :(